Apparatus for refrigeration



w. l.. GlLcHRlsT 1,937,690

APPARATUS FOR REFRIGERATIO" Original Filed Aug. 16. 1928 6 .meets-Sheet l Dec. 5,' 1933.

Dec. 5, 1933. w. l.. en cHRlsT APPARATUS FOR REFRIGERATION 6 sheets-sheet 2 Original Filed Aug. 16, 1928 y ATTORNEY.

Dec. 5, 1933. w 1 GlLcHRlsT APPARATUS FOR REFRIGERATIQN original Filed Ag.- 16, 192e e sheets-sheet 5 Dec. 5, 1933. w. L. GlLcHRlsT APPARATUS FOR RERIGERATION Original Filed Aug. 16, '1928 6 Sheets-Sheet 4 m Bmw @mi original Filed Aug. 1s, 192s e sheets-sheet 5 .WNThL Dec. 5, 1933.

w. L. GlLcHRls-r 1,937,690

APPARATUS FQR REFRIGERATION Original Filed AugI 16, (1928 6 Sheets-Sheet Patented Dec. 5, 17933 UNITED STATES PATENT OFFICE N y1,937,699 APPARATUS Foa aErmGEnA'noN Application August is, 192s, serial No. 300,975 Renewed April 14, 1933 s claims. (c1. (sz-91.5)

This invention relates to method and apparatus for preserving and dispensing cold articles, and more particularly to the type adapted for the use of solidified gas as a refrigerating medium.

The use of solidified gas as a refrigerating me-l dium may be very wasteful. It has been proposed to place the solidified gas in a container and perforate the walls thereof in order to permit the escape of the gas emanating from the solidified particles. In a prior arrangement, no attempt has been made to control the escape of the gas, and furthermore, the escape of gas has been relied upon to effect the cooling process. By the present invention, the solidified gas is kept in a sealed container, provided with a v alved outlet, and the escape of gas is controlled to suit conditions. Furthermore, the escape of gas is not relied upon exclusively for conductivity of refrigeration, but instead, separate means are primarily relied upon for the necessary conductivity.

It is therefore one of the important objects of the invention to provide an improved method and apparatus for utilizing solidied gas as a refrigerating medium.

In dispensing apparatus for cold articles, insulation is of primaryimportance, and the aim of the present invention has been not'only to preserve the eiectiveness of the insulation as by avoiding complete penetration thereof, but also to provide closure for access openings which will be very effective in preventing the transfer of heat. l

Associated with the refrigerating means, the present embodiment oi the invention also includes a magazine for storing the articles to be dispensed, and improved means for removing the articles in predetermined sequence from the 'magazine and projecting them through the access opening.

In dispensing machines, it is desirable to provide means for preventing further operation, after the last article has been dispersed. It has been proposed to accomplish this by loading or otherwise distinguishing the last article so that it willtrip the mechanism. 'Bythe present invention, particular manipulation of the last-arso ticle is avoided, as the machine is not governed thereby, but by the synchronism of the stop mechanism with the operation of the machine. This arangement constitutes one of the important features of the machine.

The machine disclosed in the following specication is particularly adapted for preservation and storage of frozen confections, but oi course it has a wide range of adaptability, so. that its use is not limited to this class of articles.

It is therefore a general object of my invention to provide an improved dispensing apparatus for cold articles.

It is a specic object of the invention to pr vide dispensing apparatus asociated with refrigerating means in such manner that the coldest article will always be dispensed rst.

Still another object of the invention is toprovide an improved coin controlled apparatus for the dispensing deyice. I

Other objects and features of novelty will be apparent as the following description proceeds, as taken in connection with the accompanying drawings which show one embodiment of my invention by way of example. Obviously the details shown and described may be greatly modied without departing from the spirit of the invention, and it will be understood therefore that the scope of the invention is not to be limited other than by the scope of the appended claims.

-In the drawings, Fig. lis a vertical cross section through a refrigerating storage container. being substantially a complete assembly of the apparatus necessary for storing, cooling, dispensing and coin control of the machine.

' Fig. 2 is a top plan view of the structure shown in Fig. 1, the closure of the insulating -container 35 being removed.

Fig. 3 is an inverted view (looking up from the bottom of the container); and showing the turntable support for the magazine.

Fig. 4 is a perspective view of a broken oi portion oi one section of the magazine.

Fig. 5 is a vertical cross section taken substantially parallel to Fig. l. Fig. 6 is a vertical section taken along the line 6 6 of the door shown in Fig. 1, and showing the details of the coin controlled apparatus.

Fig. 7 is a horizontal section showing details of the coin control as well as the dispensing magazine.

Fig. 8 is a perspective view of a construction detail, showing the method of securing parts to I the insulating wall without permitting metal con- Fig. 12 is a view looking out through the dispensing aperture.

Fig. 13 is a detail of the coin retaining knife blade.

Referring more particularly to the4 drawings, the apparatus comprises essentially a container having thick insulation walls 11 wit an outer metal casing 12 and an inner metal lining 13. This container has alarge aperture 14 at the top, which is adapted to be sealed by a cover or closure 15 having a large metal casing 16 similar in construction to the main casing 12.

The insulation material is preferably cork, although other materials may be used within the purview of my invention. It should be noted,

`as best shown in Fig. 5, that the closure 15 has no lining, and that there is no covering for the upper rim of the wall 11 of the container so that when the closure is in closed position there is direct contact of cork against cork, thus preventing conductivity of heat at the joint between the container and the cover.

Secured to the bottom of the liner 13 at the bottom of the cavity of the container is a bearing shell which receives a bearing sleeve 21. Journaled in the upper portion of the sleeve 21 is a pin 22 whichsupports an inner receptacle designated generally at 23. The pin 22 carries a-disc 24 of bearing material and adapted to contact with the upper surface 25 of the bearing shell 20, and thus form a bearing to support the structure carried by the pin 22.

Secured to the disc 24 as by rivets 26 is a turntable plate 27.

'Ihe construction of the receptacle 23 is important, and constitutes one of the features of my invention. II'he shape of the receptacle is immaterial, and it has been shown as cylindrical in form for convenience of illustration. container must be constructed of heat insulating material forming a cylindrical wall 28 and a bottom wall 29. The receptacle is provided with a charging aperture 30 at the top and a cover plate 31 of the same material is itted thereon in such a manner as to seal the receptacle when it is closed, as by a scarf joint 32. Locking devices 33 are provided. at spaced intervals around' the periphery of the coverso as to preserve the seal after the receptacle has been closed. The cover 31 is formed with .a boss 32 having a central aperture to receive a valve 33' of such construction that it may be set to permit escape of gas from the container when the internal pressure thereof exceeds a predetermined degree.

The bottom plate 29 of the receptacle is provid? ed with a plurality of metal pins 35, which pass entirely through the bottom wall, and serve to support a metal plate 36 of slightly smaller diameter than the interior of the receptacle. IIt is important thatthe plate 36 and the pins 35 be of metal or other good heat conducting material as they are relied 'upon for transmitting the cooling eil'ect from the interior of the receptacle to the space between the receptacle and the outer container.

The plate 36 serves to support a quantity of solidified gas, with which the receptacle is charged, and is indicated generally in the drawings by the reference character 40. For example this material may be solidified carbon dioxide (CO2).

The articles to be stored and dispensed are carried by the magazine which is supported by the turntable plate 27 and shown in detail in Fig. 3. This plate is circular and provided with a This series Iof radial slots 41 extending partly inward from the circumference.- Secured to the plate 27 and supported therefrom are a plurality of vertically extending channels or racks 42. The Width of each channel 42 is considerably greater than the width of the corresponding slot 41. These racks are closed on three sides, but are provided with a slot 43 extending vertically along the inside of each rack for convenience in charging. In the embodiment shown there are eight racks equally spaced around the turntable plate, and contacting at their inner corners as at 44. This arrangement, however, is not essential so long as the racks 42 are equally spaced around the turntable. As shown in Fig. 4, the wall of the rack 42 terminates short of the plate 27, and the bottoml of the rack is spaced above the plate 27 a distance slightly greater than the depth of the article to be dispensed. Of course, the shape of the rack 42 will be designed to suit the particular article for which the particular machine is to be adapted. The bottom of the plate 27 carries a plurality of lugs 200 arranged in a circle, and spaced commensurate with the racks 42. These lugs are adapted to be engagedby table turning mechanism to be later described.

As shown in Fig. 1 the outer container 10 is provided with a metal lined discharge aperture which is adapted to be closed by the door indicated generally at 51 and provided with a horizontal pivot 52 above the aperture 50, about which the door is adapted to swing. The door embodies an outer casing 53 and an inner casing 54. The inner casing 54 constitutes a cover for a blockof insulation 55, considerably larger than 3 the dischargel aperture 50. A wide margin of the casing 12 surrounding the discharge aperture 50 .is cut away as at 56 so that there may be direct contact between the insulation of the door and the insulation 11 of the outer container.

The door 51 is constructed so that all of the parts are inserted from the inside, and accordingly the inner casing 54 carries ears 57 adapted to register with bosses 58 extending inwardly from the outer casing 53, and the parts are secured in place by machine screws 59.

The entire door is carried by an apertured plate 62', secured to the metal container casing 12, and surrounding the discharge aperture 50. A strong coil spring 79' surrounds the pivot 52, and serves to return the door to tightly closed position when released.

Pivoted to the inner casing 13 at the the upper rim of the discharge aperture 50 is a swinging door 79 having an upper extension abutting the margin of the casing 13, so that it may swing outward, but its inwardmovement is limited to a vertical position. This door prevents robbing of the machine by tipping it bodily while the door 51 is held open. y

Mechanism is provided for removing an article from the magazine by merely opening the door 51. -Accordingly brackets are secured to the inner surface of the block 55, -so as to lie within the discharge aperture 50 when the door is closed. The arrangement for securing the brackets to the door without penetrating the insulation or permitting conductivity of heat therefrom are shown in detail in Fig. 8. A plurality of ne corkscrews are screwed into the block 55 and spaced so as to determine the corners of a rectangle. Each of the corkscrews 60 is provided with a threaded outer end 61, and a plate 63, provided with apertures to pass thereover, is iitted against the block 55, and nuts 62 tighta pivotal connection.

As shown in Fig. 7 the bars 72 and 73 extend horizontally inward through the aperture slightly below the turntable plate 27 and pass between guide plates and 76 upstanding from the liner 13 of the outer container. Each of the bars has a downward extension at its inner end designated at 76' and adapted to slide along the bottom of the container when the door is opened. Journaled in the bars is a transverse shaft 77 having a vertically extending plate 78 of a width slightly less than the slots 41 in the turntable plate so as to reciprocate therein.

Mechanism is provided for bringing the plate 78 to the position shown in Fig. 1 for withdrawing an article, and for turning it to the horizontal position for the return stroke, then again raising it vertically for another withdrawal. This mechanism comprises a pad 80 secured to the liner 13 between the guide plates 75 and 76 and immediately below-the rod 77 in its innermost position. This pad includes upstanding bifurcations 81 carrying a pin 82 on which is pivoted a stop member 83. The shaft 77 carries an integral cam 84 which is adapted to engage a shoulder 85 on the stop member and elevate the plate 78 on the return stroke. provided with a socket 86 and a coil spring 87 is placed therein and bears at its upper end against the under side of the stop member 83 to provide a cushion effect when the machine is subjected to rough usage.

Located to one side of the 4pad 80, and out of the path of the cam 84 is an angle plate 90 and a leaf spring 91 secured to the liner 13 by a rivet 92. These parts are adapted to be engaged by an arm 93 secured to the shaft 77 and spaced from the cam 84. Referringv now to Fig. 1, when the door is opened and the rods 72 and 73 are pulled forward the shaft 77 will also move forward and the plate 78 will contact the rear edge of the package 100 at the bottom of the magazine. As soon ascontact is made the cam 84 will ride off of the stop member shoulder 85 and the package will move-forward. Then the arm 93 begins to ride along the leaf spring 91 and compresses it. When the /arm 93 contacts with the plate 90 it will cause the plate 78 to pivot about the` shaft 77 thus accelerating the movement of the package, and when the arm 93, has passed dead center with respect to the shaft 77, the spring 91 will tend to rotate the arm 93 counter-clockwise with the shaft thus giving the plate 78 a final acceleration which gives the package 100 a final impetus to project it through the discharge aperture 50 and fall into the receiving pocket 101 shown in Fig. 5.

The coin control mechanism is shown in detail in Fig. 1. The outer casing 53 is provided with a slot 102 of substantially the size of the coin intended. A coin track member 103, comprising substantially a flattened tubular member is pivoted by rod 104 to lugs 99 projecting outwardly from the inner casing 54. The member 1 03 normally is held by spring 103a in the position shown in Fig. 1, being in register with the` slot 102 so that a coin dropped in the slot 102 will pass The pad 80 is through the track 103 and eventually to the bot-` tom of the casing which constitutes the coin receptacle.

The operating handle 105 is pivoted as at 106 to the casing 53. This handle is offset as shown, so that a pull in any direction above and' including the horizontal will pivot it about its pivot point. Also, the handle passes through a limited slot in the casing 53, which limits its movement in both directions. The handle 105 is provided with an angular extension 107 located inside the casing 51 and carrying a horizontal extension 108 normally occupying a position be-,

tween 'the guide 103 and the cover 53. Rigidly secured to the inner casing 54 is a horizontally disposed' knife member 109 shown in detail in Fig. 13 and provided with a lateral shoulder 110 of the exact size to'retain the coin intended. The width and depth of this shoulder are so arranged that coins of smaller diameter, or of less thickness than the size intended will not be retained thereby, but willbe permitted to pass on through the guide 103 to the coin receptacle.

Considerable difficulty has been experienced in g vending machines with the use of slugs having a central perforation. These central perforations are often plugged up with tin foil in order to give the necessary weight to operate coin controlled apparatus. detect and prevent the operation of the machine. by slugs of this character.

Journaled in lugs outstanding from the outer casing 54 is a transverse shaft 112, carrying an inwardly projecting arm 113 having a dog 114 formed in its upper edge and adapted to engage a series of notches 115 formed in the lower surface of the arm 116 projecting outwardly from the plate 62. The shaft 112 also carries advertically extending arm 117 having a forward proiection 118 adapted to enter a circular hole in the inner side of the coin guide 103. The upper end of the coin guide 103 has a lateral extension 120 which is adapted to blank off the coin aperture 102when theguide 103 is out of alinement therewith.

Below the arm 116 is mounted a second arm 119 carrying a cam located in the path of a pin on the arm 113, when the door is opened. This causes the arm 113 to swing further downward and release the coin held by the extensionll, after the door has been opened. The arm 117 is normally held in the position shown in Fig. 9 by a tension spring 117a connecting an extension of arm 117 with the inner casing 54, and holding a stop member 117b normally in contact with the casing 54.

The purpose ofthe plurality of notches 115 is to hold the door locked even after the flrst notch has been passed by spurious operation of the machine.

For preventing the operation of the machine by magnetic material such as iron slugs, a magnet 121a is secured to the inner casing 54 in the position shown so that the'coin guide 103 abuts against the magnet when in alinement with the entrance aperture 102. The movement of the other end of the coin guide is limited by a stop 121b. Thus iron slugs inserted in the slot 102 will be attracted by the magnet 121a and prevented from passing to the coin receptacle. As soon as the operating handle '105 is lifted the extension 108 engaging the guide 103 will pivot it about the shaft 104 and thus move it away from the magnet. slug, but as the lower end of the guide 103has The present machine is designed to This will release the ironV also been moved away from its original position, the retaining knife 109 will no longer stop the slug but will permit it to pass on down the guide into the coin receptacle without operatingthe machine. At the same time, the extension 120, blanking oil the aperture 102 will prevent the insertion of thin instruments for unauthorized tripping of the mechanism.

In the event` that a slug having a plugged center aperture is inserted, it will pass down the guide 103 and be held in position by the knife blade 109. However, when the handle 105 is lifted the tin foil plug will not have suilicient strength to move the extension 118, and consequently the tin foil plug will bepushed out of the slug aperture, but the slug will not be eifective to release the detents 114 and 115.

When, however, the proper coin is inserted it will pass down the guide 103 and be held in place by the knife blade 108. When the handle 105 is lifted the coin will contact the extension 118 and thus move the shaft 112 clockwise which will release the detents 114-115 and further elevation of the handle will open the door. It should be noted that as soon as the guide 103 moves the coin into contact with the extension 118, it is moved off of the knife-blade 109, and is held in place by pressure between the parts 103 and 118. Hence, the weight of the coin itself is not required for operation of any part of the device.

A positive stop is provided for limiting the outward movement of the door, thus preventing tearing out of the corkscrews 60. This stop comprises an ear 121 secured to the plate 62 and having pivoted thereto a slotted plate 122 in which rides a pin 123 on the inside of the cover 53. The pin'123 is above the ear 121 when the door is in the closed position, so that the plate 122 swings in an arc inside the cover 53 when the door is opened, and the pin 123 rides to the end of the slot, thus terminating outward movement of the door.

Mechanism is provided for automatically turning the magazine mounted on the' turntable through a predetermined'arc each time a package is withdrawn from the machine. Secured to the bottom of the liner 13 are a pair of angle bars 125 which serve as guide members. Mounted for reciprocation in the channel between the' guides 125 is an elongated bar 126which constitutes the main reciprocating element of the table turning; m. One end of the bar 126 is provided 'with an eye 127 which receives a headed pin 128 bent at right angles and threaded to receive a' turnbuckle `129, in turn carrying a socket 130 which receivesthe end of the shaft 77.

The bar 126l has a central lateral flange 132 carrying a pivot 133 on which is mounted a tripping lever 134. A 'small coil spring 135 is located between one end of the lever 134 and the bar 126 and serves to hold the lever in the position shown in Fig. 7, with a lug 136 abutting an upward projection of the bar 126 above ih flange 132. f

On the upstanding flange of the angle bar 125, on the opposite side of the bar 126, is pivoted a vertically oscillatable lever 137 as by means of a pivot pin 138. Near the opposite end of the lever, and upstanding from the base flange of the angle bar 125 is a stop member 139 'having an inwardly directed upper flange 140 which serves to limit the upward movement of the lever 137. A coil spring 141 interposed between the lower side of the lever 137 and the vbase'oi the member 139 normally serves to hold the bar 137 in horizontal position abutting the stop 140. The upper side of the bar 137 is provided with a rectangular slot 142, and the surfaces adjacent the slot 142 are tapered as at 143. A tapered cam portion 144 is provided between the portion 143 and the pivot 138.

A stationary guide member 145 is secured to the base of the guiding angle bar as shown; in Fig. 9, and is provided with a horizontal flange 146 which overlies the bar 137.

The extreme inner end of the operating bar 126 has a horizontal flange 147 which is adapted to ride between the flange 146 and the bar 137.

In operation, when the shaft 77 is moved forward to project an article from the magazine, the socket 130 and pin 128 will cause the bar 126 to move forward with the same speed as the shaft 77. The ange 132 and lever 134 will also move forward. At this stage in the operation one of the lugs 200 on the bottom oi the turn table will be held in the rectangular slot 142 in the bar 137. Thus as the lever 134 moves forward it will ride pastgthe lug, compressing the spring 125 which will cause the lever to snap back after it has passed the lug. Further movement of the bar 126 will cause the flange 147 to ride between the flange 146 and the bar 137. Further movement will cause the ange 147 to engage the inclined cam 144 and depress the bar 137, compressing the spring 141 and withdrawing the notch 142 from engagement with the lug, thus releasing the lug.

On the return movement of the bar 126 the portion of the lever 134 adjacent the projection 136 will engage the lug and carry the lug with it to the extreme position of its travel. Then the flange 147 will ride oil of the cam 144 and permit the spring 141 to snap the lever 137 upward. The slot 142 will engage the next suc. ceeding lug on the turn table thus locking it in position for withdrawal of the article at the bottom of the next rack of the magazine.

Mechanism is provided for preventing the operation of the machine after the magazine has been exhausted. This mechanism is in no way affected by the last package dispensed, but is controlled by operation of the mechanism in synchronism with the operation of the magazine. Accordingly a counting wheel 150 is journalled on a stud 151 mounted on one end face of the inner door casing 154. In the present embodiment, this` wheel has 80. teeth, as the magazine is designed to dispense 'articles at one charging. The wheel 150 is operated by a pawl 152 pivoted as at 153 on the-downwardly extending end 154 of a lever 155 shown in Fig. 7. The pawl 152 is urged against the wheel 150 by a leaf spring 156. The lever 155 is pivoted on top of lthe inner casing 54, on a pivot pin 157 and extends substantially the length of the casing. The other: end o.' the lever receives a tension Lspring 158, the opposite end of which is secured to a pin on the router casing so that the pivot pin 153 on which the pawl is mounted is normally urged toward the inside of the container.

The portion of the lever 155 which carries the pawl 152 Vextends to one side of the cork 55 so as to abut against the plate 62 so that when the door is opened the pivot 153. will swing. out againstthe plate 62 due to the action of the nsion spring 158. This swinging out will permit the pawl 152 to ride over one of the teeth oi' the counting wheel 150.

Accordingly on return movement of the door,

distance of one tooth. Obviously this operation is repeated for each withdrawal of a package and the wheel 150 is completely rotated when 80 packages have been dispensed.

,A leaf spring 161 carried by a pin 162 secured to the -inner casing 54 is so located that its free end may engage the teeth of the wheel 150 and hold the wheel in position while the pawl 152 is riding over atooth.

The outer face of the wheel 150 carries a stop member 165 which is pivoted about a screw 166, and provided with an elongated slot 167 which receives a screw 168 and permits limited movement of the member 165 about the pivot 16e.

Mounted in the path'o! the stop member 166 is a trip member 169, which constitutes one end of a U-shaped member 170,the bridge o f which is journalled in plugs 171 secured on the outer face of the casing 54. A spring 1 69a normally .urges the arm 169 to hold a stop 169b on the shaft 170 against the Vcasing 54. .The oppositel end of the member 170, as shown in dotted lines in Fig. 6, rests. against the under side' of the coin track 103.

When the wheel 150 has made a complete rev'olution, after all of the articles in the magazine have been dispensed, the stop member 165 will abut against the trip arm 169, and throw the lever 169 forward. The other end of the U member 170 will force the coin guide 103 to move forward 'so that the iiange 120 will underliethe coin aperture 102 prevent the insertionl of further coins. l It should b noted, 'as shown m Fig. s, that a fvisual aperture 172 is provided in the outer casing 53, in allnement with the counting wheel 150. This aperture is normallyclosed by a plug 173 containingaglock -174. The wheel 150 carries a bridge piece 175 having an elongated slot 176,'

and when the machine is serviced, the `attendant after unloc -1 the llock 174 and removing the plug 179` may a key or'other instrument through the visual opening 172 to engage the slot 176, and set the wheel for operation ,with a smaller charge.

.After the machine is serviced and recharged, the attendant may move the lever165 a slight distance permitted by the slot' 167 ywhich will bring the outer end of theI lever clear of the trip' 169, thus freeing it for further operation. Then,

for instance, if the machine has been recharged only half full, the slot 176 permits the wheel 150 to be set .by revolving it half way around, so that the remaining movement of the wheel will synwith the dispensing ofthe charge. Obviously this arrangementpermits the mechanism to be set for any fractional charge.

At the time o f service. the attendant will ofv course remove the coins deposited in the previous charge. The coins are'held in a tray 180 at the bottom of the casing 53,'access4 towhich n is provided by'a locked door 181.

I claim:

1. Refrigerating apparatus comprising in combination, a receptacle having a vent, means for supporting solidified gas in said receptacle, .and metal pins passing through said receptacle and supporting means aiording conductivity of heat therethrough. v

2. Refrigerating apparatus comprising in com. bination, a receptacle having an outlet, a valve in said outlet, a metal plate within said receptacle for supporting solidified gas therein, said plate being supported by metal pins passing through said receptacle and affording conductivity of heat therethrough.

3. Refrigerating apparatus comprising in com--A bination, a receptacle having an outlet, a plate within said receptacle for retaining-solidified gas therein, and metal pins passing through said receptacle and plate for conducting heat to said solidified gas.

4. Refrigerating apparatus comprising in comu bination a container for material to be refrig- 100 erated, a receptacle for retaining solidified gasin proximity to said' container, metallic heat conducting members projecting from the interior of said receptacle into said container, and means for venting gas from said receptacle into said container. j

5. Refrigerating apparatus comprising in combination-a receptacle for holding solidified gas. a heat insulated container surrounding and 'spaced from said receptacle,` means in the space 110 between said container and receptacle for supporting articles to be refrigerated, metallic heat conducting members projecting from the'interior of said receptacle into said space, and means for venting gas from said receptacle into said space.

6. Refrigerating and dispensing apparatus comprising a container having a dispensing opening in a wall thereof, a movable closure for said opening, a receptacle for solidiiied gas within and spaced from the inner Vwalls of said container, 1M a rotatable support within said container and in horizontal alignment with said opening, means' for retaining articles to be dispensed in a plurality of vertical .columns vupon said support and in the space between said container andreceptacle, means for venting gas from said receptacle into saidspace, metallic heat conducting mem bers projecting fromthe interior of said receptacle into the lower portion of said container, and means actuated by the movement of said closure for successively ejecting the bottom article -1- of each of said columns through said aperture and for rotating said supportwhereby vthe coldest article of each column is dispensed rst.

, 135 WILLIAM LLOYD GILCHRIST. 

